#include <fcntl.h>
#include <errno.h>
#include <signal.h>
+#include <h/signals.h>
+#include <setjmp.h>
+#include <h/mime.h>
+#include <h/tws.h>
+#include <h/utils.h>
+
+#ifdef TIME_WITH_SYS_TIME
+# include <sys/time.h>
+# include <time.h>
+#else
+# ifdef TM_IN_SYS_TIME
+# include <sys/time.h>
+# else
+# include <time.h>
+# endif
+#endif
+
+int debugsw = 0; /* global */
+int forwsw = 1;
+int inplace = 1;
+int pushsw = 0;
+int verbsw = 0;
+char *altmsg = NULL;
+char *annotext = NULL;
+char *distfile = NULL;
+
+static jmp_buf env;
+
+/* name of temp file for body content */
+static char body_file_name[MAXPATHLEN + 1];
+/* name of mhbuild composition temporary file */
+static char composition_file_name[MAXPATHLEN + 1];
+static int field_size; /* size of header field buffer */
+static char *field; /* header field buffer */
+static FILE *draft_file; /* draft file pointer */
+static FILE *body_file; /* body file pointer */
+static FILE *composition_file; /* composition file pointer */
+
+/*
+** external prototypes
+*/
+char *getusername(void);
+
+/*
+** static prototypes
+*/
+static int sendsbr(char **, int, char *, struct stat *, int);
+static void armed_done(int) NORETURN;
+static void alert(char *, int);
+static int tmp_fd(void);
+static void anno(int, struct stat *);
+static void annoaux(int);
+static int sendaux(char **, int, char *, struct stat *);
+
+static int attach(char *);
+static void clean_up_temporary_files(void);
+static int get_line(void);
+static void make_mime_composition_file_entry(char *);
static struct swit switches[] = {
{ NULL, 0 }
};
-extern int debugsw; /* from sendsbr.c */
-extern int forwsw;
-extern int inplace;
-extern int pushsw;
-extern int verbsw;
-
-extern char *altmsg; /* .. */
-extern char *annotext;
-extern char *distfile;
-
int
main(int argc, char **argv)
done(status);
return 1;
}
+
+
+/*
+** send message back-end
+*/
+static int
+sendsbr(char **vec, int vecp, char *drft, struct stat *st, int rename_drft)
+{
+ int status;
+ char buffer[BUFSIZ];
+ char *original_draft; /* name of original draft file */
+ char *p; /* string pointer for building file name */
+
+ /*
+ ** Save the original name of the draft file. The name of the
+ ** draft file is changed to a temporary file containing the built
+ ** MIME message if there are attachments. We need the original
+ ** name so that it can be renamed after the message is sent.
+ */
+
+ original_draft = drft;
+
+ /*
+ ** Convert the draft to a MIME message.
+ ** Use the mhbuild composition file for the draft if there was
+ ** a successful conversion because that now contains the MIME
+ ** message. A nice side effect of this is that it leaves the
+ ** original draft file untouched so that it can be retrieved
+ ** and modified if desired.
+ */
+ switch (attach(drft)) {
+ case OK:
+ drft = composition_file_name;
+ break;
+
+ case NOTOK:
+ return (NOTOK);
+
+ case DONE:
+ break;
+ }
+
+ done=armed_done;
+ switch (setjmp(env)) {
+ case OK:
+ status = sendaux(vec, vecp, drft, st) ? NOTOK : OK;
+ /* rename the original draft */
+ if (rename_drft && status == OK &&
+ rename(original_draft, strncpy(buffer,
+ m_backup(original_draft), sizeof(buffer)))
+ == NOTOK)
+ advise(buffer, "unable to rename %s to", drft);
+ break;
+
+ default:
+ status = DONE;
+ break;
+ }
+
+ done=exit;
+ if (distfile)
+ unlink(distfile);
+
+ /*
+ ** Get rid of any temporary files that we created for attachments.
+ ** Also get rid of the renamed composition file that mhbuild
+ ** leaves as a turd. It looks confusing, but we use the body
+ ** file name to help build the renamed composition file name.
+ */
+
+ if (drft == composition_file_name) {
+ clean_up_temporary_files();
+
+ if (strlen(composition_file_name) >=
+ sizeof (composition_file_name) - 6)
+ advise(NULL, "unable to remove original composition file.");
+
+ else {
+ if ((p = strrchr(composition_file_name, '/')) == NULL)
+ p = composition_file_name;
+ else
+ p++;
+
+ strcpy(body_file_name, p);
+ *p++ = ',';
+ strcpy(p, body_file_name);
+ strcat(p, ".orig");
+
+ unlink(composition_file_name);
+ }
+ }
+
+ return status;
+}
+
+static int
+attach(char *draft_file_name)
+{
+ char buf[MAXPATHLEN + 6]; /* miscellaneous buffer */
+ int c; /* current character for body copy */
+ int has_attachment; /* draft has at least one attachment */
+ int has_body; /* draft has a message body */
+ int non_ascii; /* msg body contains non-ASCII chars */
+ int length; /* length of attachment header field name */
+ char *p; /* miscellaneous string pointer */
+
+ /* Open up the draft file. */
+ if ((draft_file = fopen(draft_file_name, "r")) == (FILE *)0)
+ adios(NULL, "can't open draft file `%s'.",
+ draft_file_name);
+
+ /*
+ ** Allocate a buffer to hold the header components as they're read in.
+ ** This buffer might need to be quite large, so we grow it as needed.
+ */
+ field = (char *)mh_xmalloc(field_size = 256);
+
+ /*
+ ** Scan the draft file for an attachment header field name.
+ ** The existence of one indicates that the
+ ** draft has attachments. Bail out if there are no attachments
+ ** because we're done. Read to the end of the headers even if
+ ** we have no attachments.
+ */
+ length = strlen(attach_hdr);
+
+ has_attachment = 0;
+
+ while (get_line() != EOF && *field != '\0' && *field != '-') {
+ if (strncasecmp(field, attach_hdr, length) == 0 &&
+ field[length] == ':') {
+ has_attachment = 1;
+ }
+ }
+
+ /*
+ ** Look for at least one non-blank line in the body of the
+ ** message which indicates content in the body.
+ ** Check if body contains at least one non-blank (= not empty)
+ ** and if it contains any non-ASCII chars (= need MIME).
+ */
+ has_body = 0;
+ non_ascii = 0;
+
+ while (get_line() != EOF) {
+ for (p = field; *p != '\0'; p++) {
+ if (*p != ' ' && *p != '\t') {
+ has_body = 1;
+ }
+ if (*p > 127 || *p < 0) {
+ non_ascii = 1;
+ }
+ }
+ if (has_body && non_ascii)
+ break;
+ }
+
+ /*
+ ** Bail out if there are no attachments and only ASCII text.
+ ** This means we don't need to convert it to MIME.
+ */
+ if (!has_attachment && non_ascii==0) {
+ return DONE;
+ }
+
+ /*
+ ** Else: mimify
+ */
+
+ /* Make names for the temporary files. */
+ strncpy(body_file_name,
+ m_mktemp(toabsdir(invo_name), NULL, NULL),
+ sizeof (body_file_name));
+ strncpy(composition_file_name,
+ m_mktemp(toabsdir(invo_name), NULL, NULL),
+ sizeof (composition_file_name));
+
+ if (has_body)
+ body_file = fopen(body_file_name, "w");
+
+ composition_file = fopen(composition_file_name, "w");
+
+ if ((has_body && !body_file) || !composition_file) {
+ clean_up_temporary_files();
+ adios(NULL, "unable to open all of the temporary files.");
+ }
+
+ /*
+ ** Start at the beginning of the draft file. Copy all
+ ** non-attachment header fields to the temporary composition file.
+ ** Then add the dashed line separator.
+ */
+ rewind(draft_file);
+ while (get_line() != EOF && *field && *field != '-') {
+ if (strncasecmp(field, attach_hdr, length) != 0 ||
+ field[length] != ':') {
+ fprintf(composition_file, "%s\n", field);
+ }
+ }
+ fputs("--------\n", composition_file);
+
+ if (has_body) {
+ /* Copy the message body to the temporary file. */
+ while ((c = getc(draft_file)) != EOF) {
+ putc(c, body_file);
+ }
+ fclose(body_file);
+
+ /* Add a mhbuild MIME composition file line for the body */
+ /* charset will be discovered/guessed by buildmimeproc */
+ fprintf(composition_file, "#text/plain %s\n", body_file_name);
+ }
+
+ /*
+ ** Now, go back to the beginning of the draft file and look for
+ ** header fields that specify attachments. Add a mhbuild MIME
+ ** composition file for each.
+ */
+ rewind(draft_file);
+ while (get_line() != EOF && *field && *field != '-') {
+ if (strncasecmp(field, attach_hdr, length) == 0 &&
+ field[length] == ':') {
+ for (p = field+length+1; *p==' ' || *p=='\t'; p++) {
+ continue;
+ }
+ if (*p == '+') {
+ /* forwarded message */
+ fprintf(composition_file, "#forw [forwarded message(s)] %s\n", p);
+ } else {
+ make_mime_composition_file_entry(p);
+ }
+ }
+ }
+
+ fclose(composition_file);
+
+ /*
+ ** We're ready to roll! Run mhbuild on the composition file.
+ ** Note that mhbuild is in the context as buildmimeproc.
+ */
+ sprintf(buf, "%s %s", buildmimeproc, composition_file_name);
+
+ if (system(buf) != 0) {
+ clean_up_temporary_files();
+ return (NOTOK);
+ }
+
+ return (OK);
+}
+
+static void
+clean_up_temporary_files(void)
+{
+ unlink(body_file_name);
+ unlink(composition_file_name);
+
+ return;
+}
+
+static int
+get_line(void)
+{
+ int c; /* current character */
+ int n; /* number of bytes in buffer */
+ char *p; /* buffer pointer */
+
+ /*
+ ** Get a line from the input file, growing the field buffer as
+ ** needed. We do this so that we can fit an entire line in the
+ ** buffer making it easy to do a string comparison on both the
+ ** field name and the field body which might be a long path name.
+ */
+
+ for (n = 0, p = field; (c = getc(draft_file)) != EOF; *p++ = c) {
+ if (c == '\n' && (c = getc(draft_file)) != ' ' && c != '\t') {
+ ungetc(c, draft_file);
+ c = '\n';
+ break;
+ }
+
+ if (++n >= field_size - 1) {
+ field = (char *)mh_xrealloc((void *)field, field_size += 256);
+
+ p = field + n - 1;
+ }
+ }
+
+ /* NUL-terminate the field. */
+ *p = '\0';
+
+ return (c);
+}
+
+static void
+make_mime_composition_file_entry(char *file_name)
+{
+ FILE *fp;
+ struct node *np;
+ char *cp;
+ char content_type[BUFSIZ];
+ char cmdbuf[BUFSIZ];
+ char *cmd = mimetypequeryproc;
+
+ for (np = m_defs; np; np = np->n_next) {
+ if (strcasecmp(np->n_name, mimetypequery)==0) {
+ cmd = np->n_field;
+ break;
+ }
+ }
+ snprintf(cmdbuf, sizeof cmdbuf, "%s %s", cmd, file_name);
+
+ if (!(fp = popen(cmdbuf, "r"))) {
+ clean_up_temporary_files();
+ adios(NULL, "unable to determine content type with `%s'",
+ cmdbuf);
+ }
+ if (fgets(content_type, sizeof content_type, fp) &&
+ (cp = strrchr(content_type, '\n'))) {
+ *cp = '\0';
+ } else {
+ strcpy(content_type, "application/octet-stream");
+ admonish(NULL, "problems with `%s', using fall back type `%s'",
+ cmdbuf, content_type);
+ }
+ pclose(fp);
+
+ /* TODO: don't use access(2) because it checks for ruid, not euid */
+ if (access(file_name, R_OK) != 0) {
+ clean_up_temporary_files();
+ adios(NULL, "unable to access file `%s'", file_name);
+ }
+
+ fprintf(composition_file, "#%s; name=\"%s\" <>{attachment}",
+ content_type,
+ (!(cp = strrchr(file_name, '/'))) ? file_name : cp + 1);
+
+ fprintf(composition_file, " %s\n", file_name);
+
+ return;
+}
+
+/*
+** Annotate original message, and
+** call `postproc' to send message.
+*/
+static int
+sendaux(char **vec, int vecp, char *drft, struct stat *st)
+{
+ pid_t child_id;
+ int i, status, fd, fd2;
+ char backup[BUFSIZ];
+
+ fd = pushsw ? tmp_fd() : NOTOK;
+ fd2 = NOTOK;
+
+ vec[vecp++] = drft;
+ if (annotext && (fd2 = tmp_fd()) == NOTOK) {
+ admonish(NULL, "unable to create file for annotation list");
+ }
+ if (distfile && distout(drft, distfile, backup) == NOTOK)
+ done(1);
+ vec[vecp] = NULL;
+
+ for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
+ sleep(5);
+
+ switch (child_id) {
+ case -1:
+ /* oops -- fork error */
+ adios("fork", "unable to");
+ break; /* NOT REACHED */
+
+ case 0:
+ /*
+ ** child process -- send it
+ **
+ ** If fd is ok, then we are pushing and fd points to temp
+ ** file, so capture anything on stdout and stderr there.
+ */
+ if (fd != NOTOK) {
+ dup2(fd, fileno(stdout));
+ dup2(fd, fileno(stderr));
+ close(fd);
+ }
+ execvp(postproc, vec);
+ fprintf(stderr, "unable to exec ");
+ perror(postproc);
+ _exit(-1);
+ break; /* NOT REACHED */
+
+ default:
+ /*
+ ** parent process -- wait for it
+ */
+ if ((status = pidwait(child_id, NOTOK)) == OK) {
+ if (annotext && fd2 != NOTOK)
+ anno(fd2, st);
+ } else {
+ /*
+ ** If postproc failed, and we have good fd (which
+ ** means we pushed), then mail error message
+ ** (and possibly the draft) back to the user.
+ */
+ if (fd != NOTOK) {
+ alert(drft, fd);
+ close(fd);
+ } else {
+ advise(NULL, "message not delivered to anyone");
+ }
+ if (annotext && fd2 != NOTOK)
+ close(fd2);
+ if (distfile) {
+ unlink(drft);
+ if (rename(backup, drft) == NOTOK)
+ advise(drft, "unable to rename %s to",
+ backup);
+ }
+ }
+ break;
+ }
+
+ return status;
+}
+
+
+/*
+** Mail error notification (and possibly a copy of the
+** message) back to the user, using the mailproc
+*/
+static void
+alert(char *file, int out)
+{
+ pid_t child_id;
+ int i, in;
+ char buf[BUFSIZ];
+
+ for (i = 0; (child_id = fork()) == NOTOK && i < 5; i++)
+ sleep(5);
+
+ switch (child_id) {
+ case NOTOK:
+ /* oops -- fork error */
+ advise("fork", "unable to");
+
+ case OK:
+ /* child process -- send it */
+ SIGNAL(SIGHUP, SIG_IGN);
+ SIGNAL(SIGINT, SIG_IGN);
+ SIGNAL(SIGQUIT, SIG_IGN);
+ SIGNAL(SIGTERM, SIG_IGN);
+ if (forwsw) {
+ if ((in = open(file, O_RDONLY)) == NOTOK) {
+ admonish(file, "unable to re-open");
+ } else {
+ lseek(out, (off_t) 0, SEEK_END);
+ strncpy(buf, "\nMessage not delivered to anyone.\n", sizeof(buf));
+ write(out, buf, strlen(buf));
+ strncpy(buf, "\n------- Unsent Draft\n\n", sizeof(buf));
+ write(out, buf, strlen(buf));
+ cpydgst(in, out, file, "temporary file");
+ close(in);
+ strncpy(buf, "\n------- End of Unsent Draft\n", sizeof(buf));
+ write(out, buf, strlen(buf));
+ if (rename(file, strncpy(buf, m_backup(file), sizeof(buf))) == NOTOK)
+ admonish(buf, "unable to rename %s to", file);
+ }
+ }
+ lseek(out, (off_t) 0, SEEK_SET);
+ dup2(out, fileno(stdin));
+ close(out);
+ /* create subject for error notification */
+ snprintf(buf, sizeof(buf), "send failed on %s",
+ forwsw ? "enclosed draft" : file);
+
+ execlp(mailproc, mhbasename(mailproc), getusername(),
+ "-subject", buf, NULL);
+ fprintf(stderr, "unable to exec ");
+ perror(mailproc);
+ _exit(-1);
+
+ default: /* no waiting... */
+ break;
+ }
+}
+
+
+static int
+tmp_fd(void)
+{
+ int fd;
+ char *tfile = NULL;
+
+ tfile = m_mktemp2(NULL, invo_name, &fd, NULL);
+ if (tfile == NULL) return NOTOK;
+ fchmod(fd, 0600);
+
+ if (debugsw)
+ advise(NULL, "temporary file %s selected", tfile);
+ else
+ if (unlink(tfile) == NOTOK)
+ advise(tfile, "unable to remove");
+
+ return fd;
+}
+
+
+static void
+anno(int fd, struct stat *st)
+{
+ pid_t child_id;
+ sigset_t set, oset;
+ static char *cwd = NULL;
+ struct stat st2;
+
+ if (altmsg && (stat(altmsg, &st2) == NOTOK ||
+ st->st_mtime != st2.st_mtime ||
+ st->st_dev != st2.st_dev ||
+ st->st_ino != st2.st_ino)) {
+ if (debugsw)
+ admonish(NULL, "$mhaltmsg mismatch");
+ return;
+ }
+
+ child_id = debugsw ? NOTOK : fork();
+ switch (child_id) {
+ case NOTOK: /* oops */
+ if (!debugsw)
+ advise(NULL, "unable to fork, so doing annotations by hand...");
+ if (cwd == NULL)
+ cwd = getcpy(pwd());
+ /* fall */
+
+ case OK:
+ /* block a few signals */
+ sigemptyset(&set);
+ sigaddset(&set, SIGHUP);
+ sigaddset(&set, SIGINT);
+ sigaddset(&set, SIGQUIT);
+ sigaddset(&set, SIGTERM);
+ SIGPROCMASK(SIG_BLOCK, &set, &oset);
+
+ annoaux(fd);
+ if (child_id == OK)
+ _exit(0);
+
+ /* reset the signal mask */
+ SIGPROCMASK(SIG_SETMASK, &oset, &set);
+
+ chdir(cwd);
+ break;
+
+ default: /* no waiting... */
+ close(fd);
+ break;
+ }
+}
+
+
+static void
+annoaux(int fd)
+{
+ int fd2, fd3, msgnum;
+ char *cp, *folder, *maildir;
+ char buffer[BUFSIZ], **ap;
+ FILE *fp;
+ struct msgs *mp;
+
+ if ((folder = getenv("mhfolder")) == NULL || *folder == 0) {
+ if (debugsw)
+ admonish(NULL, "$mhfolder not set");
+ return;
+ }
+ maildir = toabsdir(folder);
+ if (chdir(maildir) == NOTOK) {
+ if (debugsw)
+ admonish(maildir, "unable to change directory to");
+ return;
+ }
+ if (!(mp = folder_read(folder))) {
+ if (debugsw)
+ admonish(NULL, "unable to read folder %s", folder);
+ return;
+ }
+
+ /* check for empty folder */
+ if (mp->nummsg == 0) {
+ if (debugsw)
+ admonish(NULL, "no messages in %s", folder);
+ goto oops;
+ }
+
+ if ((cp = getenv("mhmessages")) == NULL || *cp == 0) {
+ if (debugsw)
+ admonish(NULL, "$mhmessages not set");
+ goto oops;
+ }
+ if (!debugsw /* MOBY HACK... */
+ && pushsw
+ && (fd3 = open("/dev/null", O_RDWR)) != NOTOK
+ && (fd2 = dup(fileno(stderr))) != NOTOK) {
+ dup2(fd3, fileno(stderr));
+ close(fd3);
+ } else
+ fd2 = NOTOK;
+ for (ap = brkstring(cp = getcpy(cp), " ", NULL); *ap; ap++)
+ m_convert(mp, *ap);
+ free(cp);
+ if (fd2 != NOTOK)
+ dup2(fd2, fileno(stderr));
+ if (mp->numsel == 0) {
+ if (debugsw)
+ admonish(NULL, "no messages to annotate");
+ goto oops;
+ }
+
+ lseek(fd, (off_t) 0, SEEK_SET);
+ if ((fp = fdopen(fd, "r")) == NULL) {
+ if (debugsw)
+ admonish(NULL, "unable to fdopen annotation list");
+ goto oops;
+ }
+ cp = NULL;
+ while (fgets(buffer, sizeof(buffer), fp) != NULL)
+ cp = add(buffer, cp);
+ fclose(fp);
+
+ if (debugsw)
+ advise(NULL, "annotate%s with %s: \"%s\"",
+ inplace ? " inplace" : "", annotext, cp);
+ for (msgnum = mp->lowsel; msgnum <= mp->hghsel; msgnum++) {
+ if (is_selected(mp, msgnum)) {
+ if (debugsw)
+ advise(NULL, "annotate message %d", msgnum);
+ annotate(m_name(msgnum), annotext, cp, inplace,
+ 1, -2, 0);
+ }
+ }
+
+ free(cp);
+
+oops:
+ folder_free(mp); /* free folder/message structure */
+}
+
+
+static void
+armed_done(int status)
+{
+ longjmp(env, status ? status : NOTOK);
+
+ exit(status);
+}
projects / mmh / blobdiff